World March 17, 2026

Chile Begins Excavation of Border Trenches Near Peru to Curb Irregular Migration

President Kast inspects start of construction as government moves to reinforce northern frontier and increase military presence

By Caleb Monroe
Chile Begins Excavation of Border Trenches Near Peru to Curb Irregular Migration

Chile's newly inaugurated right-wing administration has started digging trenches along the northern frontier with Peru, carrying out a campaign promise to erect physical obstacles at key crossing points to curb unauthorized entries. President Jose Antonio Kast inspected the initial works near the Chacalluta border post, saying the measures aim to restore state control amid rising irregular crossings and concerns about organized crime. Human rights advocates have warned the hardline policy could endanger migrants and urged adherence to due process and international protections.

Key Points

  • Chile has begun digging trenches along its northern border with Peru to implement physical barriers at crossing points and strengthen military presence.
  • President Jose Antonio Kast inspected the initial construction near the Chacalluta border post and framed the works as restoring state control amid more than 180,000 irregular crossings in recent years.
  • Human rights groups cautioned that the government's stricter immigration measures should still respect due process, family unity, the best interests of children, and international human rights obligations.

SANTIAGO, March 17 - Chile's new right-wing government has deployed heavy earth-moving equipment to carve trenches along its northern border with Peru, moving forward on President Jose Antonio Kast's pledge to tighten controls on illegal migration and bolster the military presence in the border region.

The initiative, which Kast promised during his campaign, calls for physical barriers at strategic crossing points to reduce unauthorized entries. On Monday the president visited the Chacalluta border post to inspect the opening of the construction, framing the works as part of an effort to reassert state authority over the frontier.

While on site Kast said the plan would use excavation equipment to fortify Chile's sovereignty in response to illegal immigration, drug trafficking, and organized crime. During the visit he climbed onto one of the excavators and greeted military personnel stationed in the area.

Kast, who took office last week, has described his intention to lead an "emergency government" focused on stabilizing public finances and confronting drug trafficking. Since the inauguration, his administration has issued a series of decrees aimed at tightening security along Chile's northern border.

According to the president, irregular crossings have brought more than 180,000 people into Chile in recent years, a figure he has used to justify the construction of physical barriers to halt the flow of unauthorized migrants.

Chile is commonly regarded as one of the safer countries in the region, according to United Nations data cited by officials, though authorities and analysts have noted a recent upswing in activity by organized criminal groups, a deterioration linked in part to heightened public concerns about insecurity and a rise in homicides.

Human rights advocates and migrant support organizations have raised alarm about the hardline immigration policies being pursued, warning that such measures could put migrants at risk. Osvaldo Llinás Quintero, director of Chile's Observatory of Migration Governance and Human Rights, posted on Instagram that migration policy must account for security but also "fundamental principles such as due process, family unity, the best interests of the child, and respect for international human rights treaties."

The government has not provided additional operational details beyond the start of the trench construction and the release of the president's public statements during the inspection.


Context and immediate actions

  • Heavy machinery has been deployed to dig trenches near the Chacalluta border post on the Peru-Chile frontier.
  • The measures are part of President Kast's campaign promise to install physical barriers and increase military presence to address unauthorized migration, drug trafficking, and organized crime.
  • The president inspected the works, interacted with military personnel, and emphasized a return of state control at the border.

Risks

  • Humanitarian concerns - Hardline border measures could increase risks for migrants and raise legal and humanitarian compliance issues for the government, potentially affecting civil society and social services sectors.
  • Security and enforcement uncertainty - The focus on physical barriers and increased military deployment may alter resource allocation within defense and border security agencies without guaranteeing a reduction in organized crime-related violence.
  • Political and social tensions - The government's rapid security measures risk heightening domestic debate and unrest around migration policy, which could have implications for public finances and expenditures on security.

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